Get real, Grandpa - Technics keyboards are famous for pressing a button or two and making professional sounding music. No performer wants his or her audience to know how untalented they are, so they tape over the unmentionable name and no one knows what they are playing or pretending to play. This way, they can stick a wad of bubble gum in their mouth, blow bubbles at the audience and be praised for their great talent and sound. :rolleyes